
MICRF500
Functional Diagram
Micrel
33
32
31
30
29
28
27
26
25
24
23
34
LNA
PA
22
35
C
o
21
o
36
90 °
Prescaler
64/65
n
t
r
Logic
20
l
37
A1/A0
Control
I
n
t
19
e
38
A-counter
r
f
18
a
c
39
RC
R
N1/N0
N-counter
e
17
40
Filters
S
S
16
I
Gyrator
41
Filters
M-counter
15
M1/M0
42
43
VCO
LD
Phase
Detector
Charge
XCO
14
13
44
Demod
Pump
12
1
2
3
4
5
6
7
8
9
10
11
Figure 1. Transceiver Internal Blocks
MICRF500
6
March 2003